General

  • Target

    WinRAR ZIP archive.exe

  • Size

    1.3MB

  • Sample

    240528-pxz7jseh97

  • MD5

    0ca083c81aa434a3b8a2ce2e39473551

  • SHA1

    747299f6053fdae8711abccc5faa5a1b138b4231

  • SHA256

    76b468b3bf39c664e1be3c31a8ed9ea3f7598c0fdceb65a4b344a9991ef79ec7

  • SHA512

    fc988ce8419c8ca67a4bb973222cb46d3aa72a971885900a19dfb1f70da00b7257e7cb2d0a2ff6610bbee6f1bae2c428f31ef2788e871c877d676063d098eff8

  • SSDEEP

    24576:nEeqQq3KZU6yR6xOMvm3xIVq6c7H1hxKisQaZEBO8+nmgBtkB15i:nEuq6KR69cxOq6c7H1/ba2CHwB15i

Malware Config

Extracted

Family

xworm

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    Client.exe

  • pastebin_url

    https://pastebin.com/vnh6mTRX

Targets

    • Target

      WinRAR ZIP archive.exe

    • Size

      1.3MB

    • MD5

      0ca083c81aa434a3b8a2ce2e39473551

    • SHA1

      747299f6053fdae8711abccc5faa5a1b138b4231

    • SHA256

      76b468b3bf39c664e1be3c31a8ed9ea3f7598c0fdceb65a4b344a9991ef79ec7

    • SHA512

      fc988ce8419c8ca67a4bb973222cb46d3aa72a971885900a19dfb1f70da00b7257e7cb2d0a2ff6610bbee6f1bae2c428f31ef2788e871c877d676063d098eff8

    • SSDEEP

      24576:nEeqQq3KZU6yR6xOMvm3xIVq6c7H1hxKisQaZEBO8+nmgBtkB15i:nEuq6KR69cxOq6c7H1/ba2CHwB15i

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Enterprise v15

Tasks